JF, have you checked with SSA or AOPA on methods to start a flying club? I am members of both, both have some basic guidelines on setting up your situation.

I think talking to locals/other sites not competing with you are a good start.
SSA and AOPA may have more legal info.

Good luck on your endeavor, hope it works out.

I used to fly at a commercial operation in SE NY, it became a club, thus I have seen some of that side.